sex linkage Flashcards
1
Q
what is sex linkage
A
it is the expression of alleles located on sex chromosomes
–> depends on individuals sex
2
Q
key points about chromosomes:
A
- X chromosome is much bigger than y
- y is missing many genes present on X
3
Q
to suffer from a sex linked disease females must be
A
homozygous recessive
4
Q
to suffer from a sex linked disease males must
A
inherit a recessive X (only have 1 X)
5
Q
phenotypic ration showing sex linkage
A
female carrier : male sufferer
1 : 1
